Chapter 7: Bone Tissue Flashcards Preview

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Flashcards in Chapter 7: Bone Tissue Deck (105)
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1

__ &__ are the most durable remains of a once living body?

bone & teeth

2

osteology

study of bone

3

What is the skeletal system composed of?

bone, cartilage, & ligaments

4

cartilage

precursor to bone

5

ligament

hold bones together at the joints

6

tendons

attach muscle to bone

7

What are the functions of the skeletal system? (6)

-support
-protection
-movement
-electrolyte balance
-acid/base balance
-blood formation

8

Flat bone

thin; protects soft organs

9

Long bone

longer than wide; acted upon muscles

10

Short bone (2)

-equal in length & width
-glide across one another in multiple directions

11

irregular bones

elaborate shapes that do not fit into any of the other categories

12

compact bone (2)

-outer shell of long bone
-makes up 3/4 of bone weight

13

diaphysis

shaft; cylinder compact bone to provide leverage

14

medullary cavity

space in the diaphysis of long bone that contains bone marrow

15

epiphyses

enlarged ends of long bone (strengthen attachment)

16

spongy bone (2)

-covered by durable compact bone
-makes up 1/4 of bone weight

17

articular cartilage (3)

-made up of hyaline cartilage
-covers the joint surfaces where one bone meets another
-allows for free movement of joints

18

nutrient foramina

minute holes in the bone surface that allows blood vessels to penetrate

19

periosteum

external sheath that covers the bone except where there is articular cartilage

20

what part of the periosteum is important to growth of bone & healing of fractures

inner osteogenic layer

21

endosteum

thin layer of reticular connective tissue lining marrow cavity

22

epiphyseal plate (3)

-area of hyaline cartilage that separates the marrow spaces of the epiphysis & diaphysis
-growth plate
-enables growth in length

23

Construction of flat bone (2)

-sandwich like structure: spongy bone in between compact bone (2)
-both surfaces of flat bone covered with periosteum

24

_____ is a type of joint

suture

25

diploe

spongy layer in cranium that absorbs shock

26

bone is connective tissue that consists of ___, ____, and _____

cells, fibers, and ground substance (made up of matrix)

27

What are the 4 types of bone cells?

osteogenic, osteoblast, osteocytes, & osteoclasts

28

osteogenic (osteroprogenitor) cells (3)

-stem cells found in endosteum, periosteum, & central canals
-undergoes mitosis
-arise from embryonic mesenchymal cells

29

What do osteogenic cells produce?

osteroblasts

30

osteoblast (3)

-nonmitotic
-lined up as single layer under endosteum & periosteum
-synthesize soft organic matter of matrix